<template>
  <div>
    <!-- Header 区域 -->

    <van-nav-bar
      fixed
      title="文章详情"
      left-arrow
      @click-left="$router.back()"
    />
<!-- 可修改文案和加载图标的颜色 -->
<van-loading size="24px" vertical v-if="artObj.title===undefined">加载中...</van-loading>
    <!-- 文章信息区域 -->
    <div class="article-container" v-else>
      <!-- 文章标题 -->
      <h1 class="art-title">{{ artObj.title }}</h1>

      <!-- 用户信息 -->
      <van-cell center :title="artObj.aut_name" :label="artObj.pubdate">
        <template #icon>
          <img :src="artObj.aut_photo" alt="" class="avatar" />
        </template>
        <template #default>
          <div>
            <van-button
              type="info"
              size="mini"
              v-if="artObj.is_followed"
              @click="followedFn(false)"
              >已关注</van-button
            >
            <van-button
              icon="plus"
              type="info"
              size="mini"
              plain
              v-else
              @click="followedFn(true)"
              >关注</van-button
            >
          </div>
        </template>
      </van-cell>

      <!-- 分割线 -->
      <van-divider></van-divider>

      <!-- 文章内容 -->
      <div class="art-content" v-html="artObj.content" v-highlight></div>

      <!-- 分割线 -->
      <van-divider>End</van-divider>

      <!-- 点赞 -->
      <div class="like-box">
        <van-button
          icon="good-job"
          type="danger"
          size="small"
         v-if="artObj.attitude === 1"
         @click="loveFn(false)"
          >已点赞</van-button
        >
        <van-button v-else icon="good-job-o" type="danger" plain size="small"
           @click="loveFn(true)"
          >点赞</van-button
        >
      </div>
    </div>

    <CommentList :arr="arr"></CommentList>
  </div>
</template>

<script>
import { articleDetailAPI } from '@/api/index.js'
import { followedUserAPI, unFollowedUserAPI, articleLikeAPI, articleDisLikeAPI } from '@/api/search.js'
import { commentListAPI } from '@/api/comments.js'
import CommentList from '@/views/ArticleDetail/CommentList.vue'
export default {
  name: 'ArticleDetail',
  components: {
    CommentList
  },
  data() {
    return {
      artObj: {}, // 文章对象
      arr: [] // 评论数组
    }
  },
  async created() {
    const res = await articleDetailAPI({
      id: this.$route.params.aid
    })
    // console.log(res)
    this.artObj = res.data.data
    this.getCommentListFn()
  },
  methods: {
    async followedFn(bool) {
      if (bool === true) { // 用户点了关注按钮
        // 业务: 关注用户
        // 显示: 已关注按钮
        this.artObj.is_followed = true
        await followedUserAPI({
          target: this.artObj.aut_id
        })
      } else { // 用户点了已关注按钮身上
        // 业务: 取消关注用户
        // 显示: 关注按钮
        this.artObj.is_followed = false
        await unFollowedUserAPI({
          uid: this.artObj.aut_id
        })
      }
    },
    async loveFn(bool) {
      if (bool === true) { // 用户点在了点赞按钮上
        // 业务 => 点赞文章
        // 显示 => 已点赞按钮
        this.artObj.attitude = 1
        await articleLikeAPI({
          target: this.$route.params.aid
        })
      } else { // 用户点在了已点赞按钮上
        // 业务 => 取消点赞文章
        // 显示 => 点赞按钮

        this.artObj.attitude = -1
        await articleDisLikeAPI({
          artId: this.$route.params.aid
        })
      }
    },
    async getCommentListFn() {
      const res = await commentListAPI({
        artId: this.$route.params.aid
      })
      // console.log(res)
      this.arr = res.data.data.results
    }

  }
}
</script>

<style scoped lang="less">
.article-container {
  padding: 10px;
  margin-top: 46px;
}
.art-title {
  font-size: 16px;
  font-weight: bold;
  margin: 10px 0;
}
.van-loading__text{
  margin-top: 46px;
}
.art-content {
  font-size: 12px;
  line-height: 24px;
  width: 100%;
  overflow-x: scroll;
  word-break: break-all;
    /deep/ img{width: 100%;}
    /deep/ pre {
        white-space: pre-wrap;
        word-wrap: break-word;
    }
}

.van-cell {
  padding: 5px 0;
  &::after {
    display: none;
  }
}

.avatar {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background-color: #f8f8f8;
  margin-right: 5px;
  border: none;
}

.like-box {
  display: flex;
  justify-content: center;
}
</style>
